We mounted these on a short, 3" post above a wide column (entrance gate). Problem is that you cannot get to the screws on the bottom of the lamp base to tighten up the globe, so be careful! I had to solve the problem by drilling new holes through the side of the base to insert new clamping screws. It is not nearly as good, and I hope it works when we have a big wind! If this was mounted on a naked pole with at least 6" of clearance, there would not have been a problem. Also, the base is plastic and they just predrilled holes and stuck in metal tapping screws. The screws are very difficult to screw in and there is a danger that by holding the globe too tightly while trying to tighten the screws, you will crack it.